2756216564 has 6 divisors (see below), whose sum is σ = 4823378994. Its totient is φ = 1378108280.

The previous prime is 2756216557. The next prime is 2756216581. The reversal of 2756216564 is 4656126572.

It can be written as a sum of positive squares in only one way, i.e., 2231806564 + 524410000 = 47242^2 + 22900^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344527067 + ... + 344527074.

It is an arithmetic number, because the mean of its divisors is an integer number (803896499).

Almost surely, 2^2756216564 is an apocalyptic number.

It is an amenable number.

2756216564 is a deficient number, since it is larger than the sum of its proper divisors (2067162430).

2756216564 is a wasteful number, since it uses less digits than its factorization.

2756216564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689054145 (or 689054143 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 2756216564 is about 52499.6815609390. The cubic root of 2756216564 is about 1402.0745712447.

The spelling of 2756216564 in words is "two billion, seven hundred fifty-six million, two hundred sixteen thousand, five hundred sixty-four".